From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anjali Kulkarni Subject: Re: Debugging SR-IOV related packet flow problem with DPDK Date: Tue, 16 Jun 2015 21:08:41 +0000 Message-ID: References: <15776821.ucWqCiW9hh@xps13> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Cc: "dev@dpdk.org" To: Thomas Monjalon Return-path: Received: from na01-bl2-obe.outbound.protection.outlook.com (mail-bl2on0127.outbound.protection.outlook.com [65.55.169.127]) by dpdk.org (Postfix) with ESMTP id 7ADD5C352 for ; Tue, 16 Jun 2015 23:08:44 +0200 (CEST) In-Reply-To: <15776821.ucWqCiW9hh@xps13> Content-Language: en-US Content-ID: List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Thanks for your response. I am running my own application, and it is actually running inside a docker, not a VM. No VLAN configuration. Just SR-IOV is enabled on 2 NICs, and both devices (/dev/uio0 and /dev/uio1) are assigned to the docker. This worked a while ago perfectly. What I see is that an ixia connected to the 2 10G NICs is pumping traffic, but the VF statistics are 0. It is as if the VF or NIC did not see the packets.=20 The source dst MAC is set correctly to the VF=B9s MAC. I don=B9t see any prints on stdout after enabling the _DEBUG logs in config. Anjali On 6/16/15, 1:52 PM, "Thomas Monjalon" wrote: >Hi, > >That's third email in 8 hours for this question. >Do you plan to send an email every 4 hours? > >It's really hard to help you without knowing which application you run? >in which VM? which VLAN configuration? etc > >2015-06-16 20:22, Anjali Kulkarni: >> Hi, >>=20 >> Can someone please help with this? How can packet flow be traced on >>DPDK? >> Where are all the logs stored if we do enable the _DEBUG configs in >> config/ directory? > >stdout or somewhere else if you configured logs in your app. > >> Anjali >[...] >> I am observing that the SR-IOV enabled NIC does not increment any VF >>packet >> counters despite incoming packet flow. I have enabled some debug logs >>like >> CONFIG_RTE_LIBRTE_IXGBE_DEBUG_RX in config file. >> Can someone point me to where these logs are being printed so I can try >>to >> figure out where packets are being dropped? Or how can I debug DPDK >>packet >> flow related issues (are there any stats I can look at)? > >Statistics can be requested through a dedicated ethdev API. >